Heat radiating capillary structure, heat conducting component and method for making the heat radiating capillary structure

Abstract

The invention provides a heat dissipating capillary structure which is a metal capillary structure, and the metal capillary structure is a three-dimensional reticular cross-linkage structure. The heat dissipating capillary structure is the three-dimensional reticular cross-linkage structure which has the three-dimensional solid shape and complete reticular cross-linkage structure and larger gap rate and also has larger capillary force. The invention also provides a heat conducting component which uses the heat dissipating capillary structure and the method for manufacturing the heat dissipating capillary structure. The heat conducting component has good performance of heat conduction, and the method for manufacturing the heat dissipating capillary structure is simple.

Description

【Technical field】 [0001] The invention relates to a heat dissipation capillary structure, a heat transfer component using the heat dissipation capillary structure and a method for manufacturing the heat dissipation capillary structure 【Background technique】 [0002] With the continuous improvement of the power of electronic components such as CPUs, people pay more and more attention to the problem of heat dissipation. In the existing heat dissipation design, a large number of heat transfer components such as heat pipes, vapor chambers (radiating plates), and flat heat pipes are used. [0003] As shown in Figure 1, the commonly used design is to set a sealed cavity 1', and the sealed cavity 1' is provided with a liquid-absorbing core 2' and a working fluid 3'. Draw the inside of the sealed cavity 1' to 1.3×(10 -1 ~10 -4 )Pa negative pressure, then filled with an appropriate amount of working fluid 3', so that the capillary porous material of the liquid-absorbing core 2' clo...

AI Technical Summary

Problems solved by technology

[0008] It can be seen from the above table that the mesh core structure has good capillary force, but its permeability, thermal resistance, capillary limit at 0° inclination, gravity-affected capillary limit, flux density (boiling limit) and reliability are all poor.

The sintered powder core structure has good capillary force, heat flux density (boiling limit), gravity-affected capillary limit and reliability, but its thermal resistance and 0° inclination angle capillary limit perform poorly

The grooved core structure has good permeability, thermal resistance, capillary limit at 0° inclination, and reliability, but is affected by capillary force, gravity, capillary limit, and poor heat flux density (boiling limit)

[0009] As can be seen from this, the above three liquid-absorbent core structures are not ideal enough.

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